ChatWhale - Gamify your customer communication and loyalty rewards
Wren - Offset your carbon footprint by saving rainforests
Open Loyalty for Startups - Open source stack for building customer focused products
Capture - A great free screen capture utility that allows you to capture either a window or the desktop and save it to either a file or the clipboard.
Reviews for iOS - Keep track of your App Store reviews
Treepoints - Fight climate change and earn rewards